My Piet painting editor, GDI+ based but with plans to move to GDI. Here it is featuring a painting that tallies up the number of each character in a given phrase.
Code: http://github.com/G33kDude/Piet
And my "tech demo" featuring some dots you can drag around, which have lines between them that vary in size based on distance. Also GDI+
Code:

Peace1 wrote:jNizM can you repost the source please because the link is dead ?

Given that you quoted the AutoHotkey Installer, I guess that's what you're referring to.

Please do not post copies of the AutoHotkey installer script. The source code is included in the installer. If you install AutoHotkey, a copy is placed in the AutoHotkey directory and is used for uninstallation. Otherwise, you can use 7-zip or the "extract to" link when you run the installer to extract Installer.ahk.

You can do even more exciting stuff using HTML5/CSS3 inside a Shell.Explorer control.
Here is an example:
(Yes you can actually put GUI controls on an animated 3d cube and you could even interact with them.)